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Finding the Fourth Proportional to 220,258.32, 330,347.04 and 100,286.88

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Solution

The fourth proportional to 220,258.32, 330,347.04 and 100,286.88 is: 150,411.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,258.32 : 330,347.04 = 100,286.88 : x
  2. Step 2: Convert to fraction form
    220,258.32/330,347.04 = 100,286.88/x
  3. Step 3: Cross multiply
    220,258.32x = 330,347.04 × 100,286.88
  4. Step 4: Simplify right side
    220,258.32x = 33,129,473,958.84
  5. Step 5: Solve for x
    x = 33,129,473,958.84/220,258.32
  6. Step 6: Final answer
    x = 150,411.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.